INSECUTOR INSCITL55 MENSTRUUS 111 



Forcipom5da townsendi, new species. 



Female. Occiput black, clothed with fine, rather short, 

 yellow hairs. Antennae rather short and stout, brown basally, 

 blackish distally. Palpi black. Mesonotum dark reddish 

 brown, dusted with dull brown, the humeri and lateral margins 

 pale yellowish ; vestiture of long, coarse, shining yellow hairs. 

 Scutellum broadly margined with pale yellow and with very 

 long brown marginal hairs. Pleuree light brown, pale at the 

 sutures and broadly so beneath roots of wings. Postnotum 

 blackish. Abdomen moderately long, broad, strongly de- 

 pressed, tapered at tip, wholly black, subshining; dorsal ves- 

 titure inconspicuous, lateral hairs, coarse and long, brown with 

 golden lustre, the distal ones still longer. Wings broad, gray, 

 whitish at extreme base, the surface clothed with rather 

 long blackish hairs, a series of six opaque white bare 

 spots on the margin, two large ones on the costal margin, 

 the others smaller and less distinct, one each between veins 

 2 and 3, 3 and 4, 4: and 5, and between the forks of the fifth 

 vein; the first costal spot is largest, is situated just beyond the 

 end of the first vein and extends inward to the second vein ; 

 the second costal spot is at the tip of the second vein ; the 

 costal region, except where interrupted by these spots, is broad- 

 ly darkened and much more heavily haired. Halteres with large 

 white knobs. Coxae pale ; legs yellowish brown, the hind 

 femora infuscated distally; hind tarsi with the first joint about 

 two-thirds the length of the second ; femora, tibiae, and tarsi, 

 especially the hind ones, with many very long brown hairs. 

 Claws long and slender. Length: Body about 1.5 mm., wing 

 ; .8 mm. 



Matucana, Peru, 1 female, April 32, 1914 (C. H. T. Towns- 

 end). 



Type, Cat. No. 19956, U. S. Nat. Mus. 



This species shows a striking departure from the prevalent 

 generic type in the pigment spots of the wing membrane. It 

 gives me pleasure to dedicate this handsome species to Dr. 

 Townsend, whose work in Peru has been fruitful of so many 

 interesting results. 



